1204212124021 has 8 divisors (see below), whose sum is σ = 1224073086104. Its totient is φ = 1184355025920.

The previous prime is 1204212123973. The next prime is 1204212124039.

1204212124021 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 4 ways, for example, as 449864100 + 1203762259921 = 21210^2 + 1097161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1204212124021 - 2⁹ = 1204212123509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1204212123983 and 1204212124001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204212124091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 334176 + ... + 1587481.

It is an arithmetic number, because the mean of its divisors is an integer number (153009135763).

Almost surely, 2^{1204212124021} is an apocalyptic number.

It is an amenable number.

1204212124021 is a deficient number, since it is larger than the sum of its proper divisors (19860962083).

1204212124021 is a wasteful number, since it uses less digits than its factorization.

1204212124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1931991.

The product of its (nonzero) digits is 512, while the sum is 22.

The spelling of 1204212124021 in words is "one trillion, two hundred four billion, two hundred twelve million, one hundred twenty-four thousand, twenty-one".